Home / 127,939,694.40-191,909,541.60-104,981,443.20

Finding the Fourth Proportional to 127,939,694.40, 191,909,541.60 and 104,981,443.20

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Solution

The fourth proportional to 127,939,694.40, 191,909,541.60 and 104,981,443.20 is: 157,472,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939,694.40 : 191,909,541.60 = 104,981,443.20 : x
  2. Step 2: Convert to fraction form
    127,939,694.40/191,909,541.60 = 104,981,443.20/x
  3. Step 3: Cross multiply
    127,939,694.40x = 191,909,541.60 × 104,981,443.20
  4. Step 4: Simplify right side
    127,939,694.40x = 20,146,940,641,018,436
  5. Step 5: Solve for x
    x = 20,146,940,641,018,436/127,939,694.40
  6. Step 6: Final answer
    x = 157,472,164.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.